Oil-fired space heater



FIG. 1 is a front elevational view of an oil-fired space heater showing the new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof; and

FIG. 5 is a top plan view thereof.

The bottom of the heater embodying my design is planar and non-ornamental. 

The ornamental design for an oil fired space heater, as shown and described. 